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Mortgage Assumptions and Due On Sale

Assumption, due-on-sale, and subject-to-mortgage terms used when a loan follows a property transfer.

Mortgage Assumptions and Due On Sale covers mortgage assignments, discharges, transfers, assumptions, assumption fees, due-on-sale clauses, and subject-to mortgage purchases.

Use these pages when a property sale, loan transfer, assumption, payoff, or discharge changes who owes, who holds, or who can enforce the mortgage. It sits inside Mortgage Transfers, so readers can move up when the broader property-finance context matters.

Use the table below to choose the narrower mortgage or real-estate finance branch before applying a term to a loan file, closing record, servicing review, investor report, appraisal, or valuation model. Move into the term page when the document, calculation, party role, lien position, or property cash flow matters.

What This Branch Covers

AreaUse it for
Assumable LoanAn assumable loan is a type of mortgage loan that allows a new home purchaser to take over the existing loan of the seller without altering the terms of the loan.
Assumable Loan vs. Non-Assumable LoanThe concept of loan assumability in real estate transactions refers to whether the obligations associated with a loan can be transferred to a new borrower.
Assumable MortgageMortgage whose existing loan terms can be transferred to a qualified buyer instead of forcing the buyer to originate a new mortgage.
Assumption FeeAssumption Fee: A charge levied by a lender to a buyer who assumes the existing loan on the subject property.
Assumption of MortgageFormal transfer of an existing mortgage to a buyer who takes over the debt obligation under the lender’s approval process.
Due-on-Sale ClauseMortgage contract provision that lets the lender demand payoff when ownership changes without approved loan transfer.
Subject to MortgageProperty-transfer structure where the buyer takes title subject to an existing mortgage without formally taking over the debt in the same way as an assumption.

What to Check

  • Assignment, discharge, assumption agreement, due-on-sale clause, payoff statement, and recorded release.
  • Borrower consent, lender consent, transfer date, servicing transfer, and title record.
  • Assumable, subject-to, non-assumable, or transfer-restricted loan status.
  • Effect on enforceability, payment obligation, lien release, borrower liability, and sale closing.
  • Jurisdiction and loan-program transfer rules.

Common Mistakes

  • Confusing assignment of lender rights with borrower assumption of debt.
  • Treating subject-to purchases as full loan assumption.
  • Ignoring due-on-sale clauses and lender consent.
  • Assuming discharge, payoff, satisfaction, and release happen automatically.

Mortgage-transfer content is educational and does not provide legal, title, lending, tax, or transaction advice.

In this section

Choose a subsection first. Deeper term pages live inside each subsection, which keeps large topic hubs readable.

Assumable Loan

An assumable loan is a type of mortgage loan that allows a new home purchaser to take over the existing loan of the seller without altering the terms of the loan.

Assumable Loan vs. Non-Assumable Loan

The concept of loan assumability in real estate transactions refers to whether the obligations associated with a loan can be transferred to a new borrower.

Assumable Mortgage

Mortgage whose existing loan terms can be transferred to a qualified buyer instead of forcing the buyer to originate a new mortgage.

Assumption Fee

Assumption Fee: A charge levied by a lender to a buyer who assumes the existing loan on the subject property.

Assumption of Mortgage

Formal transfer of an existing mortgage to a buyer who takes over the debt obligation under the lender's approval process.

Due-on-Sale Clause

Mortgage contract provision that lets the lender demand payoff when ownership changes without approved loan transfer.

Subject to Mortgage

Property-transfer structure where the buyer takes title subject to an existing mortgage without formally taking over the debt in the same way as an assumption.

Revised on Sunday, June 21, 2026